Liquid crystal display panel with reduced pixel defects

Claim 2

A liquid crystal display panel comprising: a substrate; and a plurality of pixel elements formed on said substrate in a matrix form, each of said pixel elements having: a gate electrode provided on said substrate, a first insulating film provided covering said gate electrode, a pixel electrode provided on said first insulating film, a semiconductor layer provided on said first insulating film directly above said gate electrode, a source region and a drain region formed in said semiconductor layer on both sides of said gate electrode, a first electrode connected to one of said source region or said drain region, a second insulating film provided on said pixel electrode but under said semiconductor layer, a hole provided in said second insulating film, and a second electrode connecting the other of said source region or said drain region and said pixel electrode through said hole.

Claim 3

A liquid crystal display panel as claimed in claim 1, wherein said substrate is a glass substrate, said first insulating film is a silicon oxide or a silicon nitride film, said semiconductor layer is an amorphous silicon layer, and said second insulating film is a silicon nitride film.

Claim 4

A liquid crystal display panel as claimed in claim 1, wherein said substrate is a glass substrate, said semi-conductor layer is an amorphous silicon layer, and said second insulating film is a polyimide film.

Claim 5

A liquid crystal display panel comprising: a substrate; a plurality of rows of gate electrodes provided on said substrate; a plurality of columns of one of source electrodes and drain electrodes provided above said substrate; a plurality of pixel electrodes provided above said substrate corresponding respectively to each of the intersections of a matrix formed by said plurality of rows of gate electrodes and said plurality of columns of said one of source electrodes and drain electrodes; a first insulating film provided between said plurality of rows of gate electrodes and said plurality of pixel electrodes; a second insulating film provided between said plurality of pixel electrodes and said plurality of columns of said one of source electrodes and said drain electrodes; a plurality of holes provided in said second insulating film; and a plurality of semiconductor layers provided above said second insulating film above respective ones of said plurality of rows of gate electrodes, each of said plurality of semiconductor layers having a source region and a drain region on respective sides of a respective gate electrode, respective ones of said source regions and said drain regions being connected to corresponding ones of said source electrodes and said drain electrodes, a source electrode and a drain electrode being associated with each pixel electrode, and each of said plurality of semiconductor layers being connected to a respective pixel electrode by further connecting a respective one of said source electrode and said drain electrode to said pixel electrode through a respective hole in said second insulating film.

Claim 6

A liquid crystal display panel comprising: a substrate; a plurality of rows of gate electrodes provided on said substrate; a plurality of columns of one of source electrodes and drain electrodes provided above said substrate; a plurality of pixel electrodes provided above said substrate corresponding respectively to each of the intersections of a matrix formed by said plurality of rows of gate electrodes and said plurality of columns of said one of source electrodes and drain electrodes; a first insulating film provided between said plurality of rows of gate electrodes and said plurality of pixel electrodes; a second insulating film provided between said plurality of pixel electrodes and said plurality of columns of said one of source electrodes and said drain electrodes; a plurality of holes provided in said second insulating film; and a plurality of semiconductor layers provided above said second insulating film above respective ones of said plurality of rows of gate electrodes, each of said plurality of semiconductor layers having a source region and a drain region on respective sides of a respective gate electrode, respective ones of said source regions and said drain regions being connected to corresponding ones of said source electrodes and said drain electrodes, a source electrode and a drain electrode being associated with each pixel electrode, and each of said plurality of semiconductor layers being connected to a respective pixel electrode by further connecting a respective one of said source electrode and said drain electrode to said pixel electrode through a respective hole in said second insulating film.

Claim 7

A liquid crystal display panel as claimed in claim 4, wherein said substrate is a glass substrate, said first insulating film is a silicon oxide, said second insulating film is a silicon nitride, and said semiconductor layer is an amorphous silicon layer.